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Comparing Coro/Changes (file contents):
Revision 1.368 by root, Sun Sep 21 01:23:26 2008 UTC vs.
Revision 1.433 by root, Tue Nov 18 23:20:41 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's 4TODO: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!), 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)). 6 but very lacking in others (higher level ipc)).
7
8TODO: testcancel
9TODO: guard as SLF - to avoid deadlocks.
10TODO: Coro::Signal as SLF.
11 - avoid deadlock in Coro::Channel if maxsize == 1 (Richard Hundt).
12
135.0
14 - NEW ARCHITECTURE: use the latest 4.x version if you experience
15 stability issues.
16 - bump API version to 7 - all dependents must be recompiled.
17 - removed timed_* functions - they were not being used anyways
18 and should be replaced by a more generic mechanism -
19 and were annoying to support anyways :)
20 - removed SemaphoreSet's waiter method - use sem instead.
21 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
22 - async_pool did free a scalar value twice
23 ("Attempt to unreference...").
24 - fix a longstanding bug where calling terminate on a coro that
25 was waiting for a semaphore that was just becoming available
26 would cause a deadlock (semaphore would get into a state where
27 it was available but waiters were still blocked).
28 - calling throw on a coroutine that is waiting for a semaphore will
29 no longer make it acquire the semaphore (and thus leak a count).
30 - perl's process emulation is now not even theoretically supported
31 anymore.
32 - new function Coro::Semaphore::wait.
33 - use named constants in Coro::Channel (Richard Hundt).
34 - directly patch the entersub opcode calling SLF functions (cede,
35 transfer and so on). this does speed up context switching, but
36 more importanly, it frees us from the hardcoded behaviour of
37 entersub, so we might actually be able to return something from
38 those functions and atcually create new ones.
39 - take advantage of __builtin_frame_address on gcc.
40 - expose THX in coroapi (not sure whether this was a wise decision,
41 as "threaded" perls are running at half speed anyways).
42 - implement execute_slf (schedule-like-function) interface that makes
43 it possible to implement schedule-like-functions in XS.
44 - use new SLF interface to massively speed up Coro::EV by roughly a
45 factor of two.
46 - used new SLF interface to massively speed up Coro::Semaphore by a
47 factor of three.
48 - used new SLF interface to speed up Coro::AIO by roughly a factor of
49 four and reduce its memory usage considerably.
50 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
51 for a nice speedup and vastly more correct behaviour. Also implement
52 a new method "sem" to get at the underlying semaphore object.
53 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
54 (in comparison) 20-40% speedup.
55 - forgot to include Coro/libcoro/README in the dist for all these years.
56 - work around a freebsd pthreads bug (manual testcancel is required as
57 pthread_cond_wait isn't a cancellation point on freebsd).
58
594.913 Sat Nov 15 07:58:28 CET 2008
60 - async_pool did free a scalar value twice
61 ("Attempt to unreference...").
62
634.912 Thu Nov 13 18:31:23 CET 2008
64 - minor cleanups.
65 - use much larger stacks on linux and perl < 5.8.8.
66 - Coro::Debug::new_unix_server did not unlink the socket
67 when destroyed.
68
694.911 Tue Nov 11 04:26:17 CET 2008
70 - "port" to threaded perls.
71
724.91 Mon Nov 10 05:36:38 CET 2008
73 - the ->throw exception object no longer leaks.
74 - creating a new cctx leaked a scopestack entry (memleak).
75 - new coroutines didn't get created with a zero flags field
76 (unknown impact).
77 - calling ->throw on a not-yet-started coroutine should now work
78 instead of being ignored.
79 - ->throw is now supported on Coro::State objects.
80 - clean up cctx creation code a bit.
81 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
82
834.9 Sat Nov 8 17:45:27 CET 2008
84 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
85 - (libcoro) no longer leak threads in the experimental pthread backend,
86 also speed it up considerably.
87 - (libcoro) do not rely on makecontext passing void *'s unscathed.
88 - fix compiletime dependencies on libcoro in the Makefile.
89 - cctx_count wasn't always updated properly.
90 - Coro::State::cctx_stacksize wasn't applied correctly.
91 - new function Coro::State::cctx_max_idle.
92 - the default max number of idle C contexts is now 4.
93 - (libcoro) try harder to get _setjmp/_longjmp.
94 - (libcoro) cleanup and extend the libcoro API to officially
95 allow the creation of empty source contexts.
96 - very experimental workaround for the totally broken netbsd platform.
97 - tried to hack around openbsd bugs.
98
994.804 Wed Nov 5 16:36:00 CET 2008
100 - Coro::Debug::new_unix_server would not create a non-blocking listening
101 socket, sometimes causing freezes.
102 - (libcoro) fix misaligned stack points for setjmp and assembly
103 methods, which can cause crashes on x86/x86_64 with a sufficiently
104 aggressive compiler.
105 - new function: Coro::Debug::new_tcp_server.
106 - move ->throw into the Coro class because it only works on coro objects.
107
1084.803 Mon Nov 3 17:16:12 CET 2008
109 - (libcoro) use a global asm statement to become independent of gcc
110 otpimisations for CORO_ASM (thanks to pippijn for the idea).
111 - try to workaround yet another broken bsd, this time dragonfly.
112
1134.802 Thu Oct 30 10:56:12 CET 2008
114 - support -fno-omit-frame-pointer on x86 with the assembly method.
115 - tune 01_unblock.t tests a bit.
116
1174.801 Wed Oct 22 18:33:37 CEST 2008
118 - improve readline speed for very long "lines".
119 - backport to 5.8.8.
120
1214.8 Thu Oct 2 13:34:40 CEST 2008
122 - new function Coro::AIO::aio_wait.
123 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
124 - greatly speed up and reduce memory usage of Coro::AIO requests.
125 - implement some other ยต-optimisations.
126
1274.749 Mon Sep 29 14:40:12 CEST 2008
128 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
129
1304.748 Sat Sep 27 14:03:19 CEST 2008
131 - implement, but do not document, PerlIO::cede(granularity).
132 - Coro::Storable forgot to wrap Storable::pstore.
133 - work around the multitude of leaks and memory corruption
134 bugs in PerlIO::via by using our own C-level perliol. As a side
135 effect, Coro::Storable is now much, much, much faster.
136
1374.747 Tue Sep 23 01:59:41 CEST 2008
138 - fix a per-cv memleak (one empty array was leaked per
139 code reference).
140 - avoid a crash in coro->call|rss when the coroutine was already
141 destroyed (most noticably when using Coro::Debug::ps :)
142 - also protect *Storable::FILE.
143 - push up default storable granularity to 20ms.
7 144
84.746 Sun Sep 21 03:22:20 CEST 2008 1454.746 Sun Sep 21 03:22:20 CEST 2008
9 - be more insistent on locking Storable against reentrancy 146 - be more insistent on locking Storable against reentrancy
10 in Coro::Storable. 147 in Coro::Storable.
11 - move swap_def?v and throw to Coro::State, as documented. 148 - move swap_def?v and throw to Coro::State, as documented.

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